<template>
  <div>
    <!-- 面包屑导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>权限管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区 -->
    <el-card>
      <!-- 搜索区域 -->
      <el-row :gutter="25">
        <el-col :span="10">
          <!-- 搜索添加 -->
          <el-input placeholder="请输入想要查询的名字" v-model="queryInfo.query" clearable @clear="getUserList">
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>

        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true"> 添加用户 </el-button>
        </el-col>
      </el-row>

      <!-- 用户列表 -->
      <el-table :data="List" border stripe :header-cell-style="{ textAlign: 'center' }" :cell-style="{ textAlign: 'center' }">
        <el-table-column type="index"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="密码" prop="password"></el-table-column>
        <el-table-column label="角色" prop="role"></el-table-column>
        <el-table-column label="状态" prop="state">
          <!-- scope.row 就是当前行的信息 -->
          <template slot-scope="scope">
            <el-switch v-model="scope.row.state" @change="userStateChanged(scope.row)"></el-switch>
          </template>
        </el-table-column>

        <el-table-column label="操作" width="200px">
          <template slot-scope="scope">
            <!-- 修改 -->
            <el-button type="primary" icon="el-icon-edit" @click="showEditDialog(scope.row.id)" size="mini"></el-button>
            <!-- 删除 -->
            <el-button type="danger" icon="el-icon-delete" size="mini" @click="deleteUser(scope.row.id)"></el-button>
            <!-- 权限 -->
            <el-tooltip effect="dark" content="修改权限" placement="top-start" :enterable="false">
              <el-button type="warning" icon="el-icon-setting" size="mini" @click="openRoleDialog(scope.row)"></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pageStart"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pageSize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      ></el-pagination>

      <!-- 创建新用户对话框 -->
      <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="50%" @close="addDialogClosed">
        <!-- 内容主体区域 -->
        <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
          <!-- 用户名 -->
          <el-form-item label="用户名" prop="username">
            <el-input v-model="addForm.username"></el-input>
          </el-form-item>
          <!-- 密码 -->
          <el-form-item label="密码" prop="password">
            <el-input v-model="addForm.password"></el-input>
          </el-form-item>
          <!-- 邮箱 -->
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="addForm.email"></el-input>
          </el-form-item>
        </el-form>
        <!-- 内容底部区域 -->
        <span slot="footer" class="dialog-footer">
          <el-button @click="addDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="addUser">确 定</el-button>
        </span>
      </el-dialog>

      <!-- 修改用户对话框 -->
      <el-dialog title="修改用户信息" :visible.sync="editDialogVisible" width="50%" @colse="editDialogClosed">
        <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
          <!-- 用户名 -->
          <el-form-item label="用户名" prop="username">
            <el-input v-model="editForm.username" disabled></el-input>
          </el-form-item>
          <!-- 密码 -->
          <el-form-item label="密码" prop="password">
            <el-input v-model="editForm.password"></el-input>
          </el-form-item>
          <!-- 邮箱 -->
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="editForm.email"></el-input>
          </el-form-item>
        </el-form>
        <span slot="footer" class="dialog-footer">
          <el-button @click="editDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="editUserInfo">确 定</el-button>
        </span>
      </el-dialog>

      <!-- 角色选择对话框 -->
      <el-dialog title="修改角色" :visible.sync="roleDialogVisible" width="30%">
        <el-form>
          <el-form-item label="角色">
            <el-select v-model="currrRole" placeholder="请选择角色">
              <el-option v-for="role in roleList" :key="role.value" :label="role.label" :value="role.value"></el-option>
            </el-select>
          </el-form-item>
        </el-form>
        <span slot="footer" class="dialog-footer">
          <el-button @click="roleDialogVisible = false">取消</el-button>
          <el-button type="primary" @click="updateUserRole()">确定</el-button>
        </span>
      </el-dialog>
    </el-card>
  </div>
</template>

<script>
export default {
  name: 'userList',
  data() {
    return {
      // 查询信息实体
      queryInfo: {
        query: '',
        pageStart: 1,
        pageSize: 5,
      },
      List: [],
      total: 0,
      addDialogVisible: false, //对话框状态
      addForm: {
        username: '',
        password: '',
        email: '',
      },
      // 控制修改用户对话框显示/隐藏
      editDialogVisible: false,
      // 修改用户信息
      editForm: {},
      //表单验证
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 5, max: 8, message: '长度在 5 到 8 个字符', trigger: 'blur' },
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 8, message: '长度在 6 到 8 个字符', trigger: 'blur' },
        ],
        email: [{ required: true, message: '请输入邮箱地址', trigger: 'blur' }],
      },
      // 修改用户表单验证规则
      editFormRules: {
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 8, message: '长度在 6 到 8 个字符', trigger: 'blur' },
        ],
        email: [{ required: true, message: '请输入邮箱', trigger: 'blur' }],
      },
      // 角色列表
      roleList: [
        { value: '普通管理员', label: '普通管理员' },
        { value: '超级管理员', label: '超级管理员' },
      ],
      // 角色对话框是否可见
      roleDialogVisible: false,
      currrRole:'',
      roleId:0
    };
  },
  created() {
    this.getUserList();
  },
  methods: {
    // 打开角色选择对话框
    openRoleDialog(row) {
      this.currrRole = row.role;
      this.roleId = row.id;
      this.roleDialogVisible = true;
    },
    // 更新用户角色
    async updateUserRole() {
      const { data: res } = await this.$http.put(`/userRole?id=${this.roleId}&role=${this.currrRole}`);
      if (res != 'success') {
        return this.$message.error('操作失败！！！');
      }
      this.$message.success('操作成功！！！');
      // 更新成功后，可以关闭对话框
      this.roleDialogVisible = false;
      this.getUserList();
    },
    // 获取所有用户
    async getUserList() {
      // 调用post请求
      const { data: res } = await this.$http.get('allUser', {
        params: this.queryInfo,
      });
      this.List = res.data; // 将返回数据赋值
      this.total = res.numbers; // 总个数
      console.log(this.queryInfo);
    },
    // 监听pageSize改变的事件
    handleSizeChange(newSize) {
      this.queryInfo.pageSize = newSize;
      this.getUserList(); // 数据发生改变重新申请数据
    },
    // 监听pageStart改变的事件
    handleCurrentChange(newPage) {
      this.queryInfo.pageStart = newPage;
      this.getUserList(); // 数据发生改变重新申请数据
    },
    // 修改用户状态
    async userStateChanged(userinfo) {
      const { data: res } = await this.$http.put(`userState?id=${userinfo.id}&state=${userinfo.state}`);
      if (res != 'success') {
        userinfo.state = !userinfo.state;
        return this.$message.error('操作失败！！！');
      }
      this.$message.success('操作成功！！！');
    },
    // 监听添加用户
    addDialogClosed() {
      this.$refs.addFormRef.resetFields(); // 重置表单项
    },
    // 添加用户
    addUser() {
      this.$refs.addFormRef.validate(async valid => {
        console.log(valid);
        if (!valid) return;
        // 发起请求
        const { data: res } = await this.$http.post('addUser', this.addForm);
        if (res != 'success') {
          userinfo.state = !userinfo.state;
          return this.$message.error('操作失败！！！');
        }
        this.$message.success('操作成功！！！');
        //隐藏
        this.addDialogVisible = false;
        this.getUserList();
      });
    },
    // 删除按钮
    async deleteUser(id) {
      // 弹框
      const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning',
      }).catch(err => err);
      // 成功删除为confirm 取消为 cancel
      if (confirmResult != 'confirm') {
        return this.$message.info('已取消删除');
      }
      const { data: res } = await this.$http.delete('deleteUser?id=' + id);
      if (res != 'success') {
        return this.$message.error('操作失败！！！');
      }
      this.$message.success('操作成功！！！');
      this.getUserList();
    },
    // 确认修改
    editUserInfo() {
      this.$refs.editFormRef.validate(async valid => {
        console.log(valid);
        if (!valid) return;
        // 发起请求
        const { data: res } = await this.$http.put('editUser', this.editForm);
        console.log(res);
        if (res != 'success') return this.$message.error('操作失败！！！');
        this.$message.success('操作成功！！！');
        //隐藏
        this.editDialogVisible = false;
        this.getUserList();
      });
    },
    // 关闭窗口
    editDialogClosed() {
      this.$refs.editFormRef.resetFields();
    },
    // 展示修改框
    async showEditDialog(id) {
      const { data: res } = await this.$http.get('getUpdate?id=' + id);
      this.editForm = res;
      this.editDialogVisible = true;
    },
  },
};
</script>

<style lang="less" scoped>
.el-breadcrumb {
  margin-bottom: 15px;
  font-size: 17px;
}
</style>